Brake-beam support-arm bracket



Aug. 19, 1930. ss ET AL 1,773,376

BRAKE BEAM SUPPORT ARM BRACKET Filed Jan. 10 1929 2 sheets-sheet. 1

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BRAKE BEAM SUPPORT ARM BRACKET Filed Jaxi. 10, 1929 2 Sheets-Sheet 2 Patented Aug. 19,1939

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'oIsf c BRAKE-BEAM wa m- R BRACKET Application filed January 10,1929. Serial Nd. 331339;:

Our invention relates to railway rolling stock and consists in a novel bracket formountlng-a'thlrd or fourth point; support or guide arm for railway truckbrake beams;

It the object of our invention tb forge a bracket having a body portion for application't'o the truck spring plank 'and h'av ing. other portions for-guiding a supportarm and affording seats for a support arm carrying. element. Up to the present time, the most satisfactory formof bracket has consisted of a castingyalthoug-h the advantages of: fo'rg 1 ing have been recognized There have been previous-efforts madeto forge a bracket;

These efforts have involved the doubling-of thebracket metal. onitself which is difiicult; in machineforging-operations and-unduly stresses the metal; and requires more metal than is necessary andunduly lncreases the costpof the-bracket over a forged bracket Other efforts have required that the rivets I securing the, bracket/to the spring. plank be countersunk in the sheet" metal of: wh ch the bracket 18 formed WlllCh 1s obgectionable as the attachmentofthe bracketatdthespring plank is not assured. In; another form; the rivets haverbeen' so spaced from the guard thatthe rivet headsneed not be countersunk butthe bracket Was not sufficiently rigid be- LWQBR'I the rivets, which secure the bracket to thespring plank, and the flangeswhich seat. T

th e guide carrying pins.

Our. present- .bracket overcomes the objectionablev features :referredto, and provides an economical and'efiicientaforged bracket for the-intended purpose- 1 In; the acconip ying draavings; which nu se trataour inventio 1 Figure 1 is a topview: ofiagliailroaditruck su e Rigel-"e8 is-:a-t -p;.vi iiv .130 improve bracket.-

bracket refi e; a ertical. s etiea through the;

t i 1 is rendered suflicientlyrigid "andf'strong-be Y Y tween these pointsv Where de'vices'of the t'y-pe c a r. r 1,152,455 Eigure lis in partsideviemand in parta;wouldbemostlikelyto fail; uidinah ection thrp ughath c nt r-retells g i i l of tanning; brack tasithez lat iPr-i c lililx;

new is --p@r m d V ew a d? l: P

. a transverse section center of-the;

bracket.- I a a Figure (Sisa bending, punching and shearing diagram or the blank from-Which the bracket is formed. v a 7 Figure 7 is a top view of a modified formofbracket. "V v Figure 8 is a: longitudinal vertical section through the same.

Figure 9' isa transverse vertical section through the same; r The-spring pl ank shown in Figures 1 and 2 is ofthe usual upturned channel 'form andthebrake beam indicated is *of thetrussed type having a compression-member 1,a ten sion member 2 and a strut 3. A chair-4 is mounted on the tensionmember 2 of-the beam andrides on'the support arm 5 which is :mounted upon the spring plank A by means of our novel bracket. a

The bracket is ofinverted channel shape gen'erallyand comprises a relatively Wide body portion G hich fits against the flat un- 1 derside of the spring plank A and is provided tion 9 which serves to position theguide arm 5 in a well-known manner, the guide arm hav-v ing acorresponding depression 10 fitting with the depressionin the bracket.

The'sides of thebracket arefiange'ddown Wardly as indicated at ll-and-the flanges-id termediate their ends are oflset transversely {of the bracket as indicated at 12"to provide narrower end portions 1-3 for-the bracketim Which the fiangesare closerto each otherthan at the intermediateportionof-the bracketandi also are deeper so as to provide" seats" 15 for the. support arm carrying pins 16'. f

fromthe. seats 15' to: and around the holes 7;

for the securing: rivets and thus the brackets shown i-n Figurev'5- of-Busse Patent t gujlaran therefore; do s; not involveanjys waste of material. The bracket may be punched and bent in a single operation, the bending lines being indicated at B. WVhere the clearance between the spring plank and the rail is limited, it may be desirable to remove surplus material from the end portions of the down-turned flanges and in this case the plate may be trimmed along the lines indicated at C.

Where the spring plank is high enough above the rail so that the depending flanges 14 do not project below the clearance limits, the extra material below flanges 16 is notobjectionable, and need not be removed. v This will save trimming and die cost.

In'the modification illustrated in Figure 7, the side flanges 17 do not extend continuous from end to end of the bracket but are of gradually decreasing depth towards the center of the bracket and fade out at the middle portion as indicated at 18. In this bracket, the ends of the flanges have been cut as shown at 19 to decrease the depth thereof.

The illustrated device may be manufactured more economically than a cast bracket of the same size'and affords all the advantages of pressed steel without having any weakened structure-at vital points as have been present in such previous attempts at providing forged brackets with which we are familiar.

We contemplate the exclusive use of such modifications in the details of our structure as come within the spirit of our invention as expressed in our claims.

1. A brake beam support arm bracket forged from a plate and provided with down wardly bent flanges extending lengthwise of the bracket along the sides thereof, said flanges being offset laterally intermediate their ends to provide a restricted space between said flanges at one point, whereby the adjacent portions of said flanges may position a support arm, and to provide a relatively wider space between said flanges at another point for accommodating bracket securing elements spaced transversely ofthe'bracket' width of saida greater distance than the restricted space. Y

2'. A- brake beam support arm bracket forged from a plate and provided withdowjn wardly bent flanges extending lengthwise of the-bracket along the sides thereof, said flanges being offset laterally intermediate their'ends to provide a restricted; space be: tweensa d-flangesatone point; whereby the adjacent portionsof said flanges'may positions; support arm-,and to 'provi'de'a relative, iy wider'space betweensaid flanges at an other point for accommodating bracket se'-' curing elements spaced transversely of the bracket agreate r distance thanthe width ofsaid restricted space, said flanges adj acent to 'said restricted space being 'deeper'than' elsebroken from said end portion past said open ings to the intermediate portion of the bracket.

4:. A brake beam support arm bracket comprising a forging having a body portion for application to a car part, depending flanges at the ends of said body portion forming seats for a support arm carrying element, said body portion extending transversely of the V bracket beyond said seats for receiving attaching elements, said flanges extending lengthwise of the bracket between said. seats and the sides of said body portion so as to provide adequate rigidity and strength between the supported and supporting points of the bracket.

' r 5. A brake beam support arm bracket comprising a wide body portion for attachment to a car part, flanges along the sides of the bracket, continuous from end to end of the bracket, having their outer ends offset inwvardly of the bracket and forming a lateral guide at each end of the bracket substantially narrower than said attaching portion.

6. A brake beam support arm bracket formed from a flat rectangular plate, parallel side portions of which plate are bent downwardly to provide reinforcing flanges, the end portions of said bracket being narrower than the intermediate portions and the end portions of'said flanges being deeper than the intermediate portions whereby said end portions provide restricted guides for a support arm and provide seats for arm carrying pins and whereby the intermediate portion of the bracket is adapted to receive attaching elements spaced from each other'on opposite sides of the longitudinal center line of the Y bracket so as to permit the passage of a support arm between them. 7 V

7. In combination, a. railway truck spring plank, a bracket applied to the underside thereof and comprising an inverted channel with its'fianges offset laterally of thebracket,

'a support arm fitting between said flanges where they are nearest each other, and securing elements extending through said spring plank and bracket at the side of said support arm where said flanges are farthestapartt 8. In combination, a railway truck spring plank, a bracket applied to the underside ALBIN P. RISSLER. EDWIN G. BUSSE. 

